Packet #988227

Database ID:	988227
Mesh Packet ID:	`0x482081fe` Used for correlation across gateways
Timestamp:	2026-06-09 10:14:08 UTC
From Node:	Fk9mk4 0d53 (Fk9M)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Fk9mk4 0d53 (Fk9M)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/4 hops Start: 4, Limit: 4
Relay Node:	`53` Fk9M Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Fk9mk4 0d53
Short Name:	Fk9M
Node ID:	!25500d53
MAC Address:	zsYlUA1T
Hardware:	TRACKER_T1000_E

Raw Packet Analysis

Complete field breakdown and MQTT privacy/exposure analysis

Packet Structure

MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)

Total Size:	76 bytes
Gateway:	!25500d53
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	0 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!25500d53` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`626003283` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`76` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1781000041` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`BACKGROUND` Packet priority level	enum
`delayed`	Not set	enum
`channel`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`83` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!25500d53`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!25500d53", "long_name": "Fk9mk4 0d53", "short_name": "Fk9M", "macaddr": "zsYlUA1T", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 626003283, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhMjU1MDBkNTMSC0ZrOW1rNCAwZDUzGgRGazlNIgbOxiVQDVMoR0IgRcsMndjrRomSurjk0eT17nwBv0/lBuuM0k2kPOyw1V1IAA==", "bitfield": 0 }, "id": 1210089982, "rx_time": 1781000041, "hop_limit": 4, "priority": "BACKGROUND", "hop_start": 4, "relay_node": 83 }, "channel_id": "LongFast", "gateway_id": "!25500d53" }, "mesh_packet": { "from": 626003283, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhMjU1MDBkNTMSC0ZrOW1rNCAwZDUzGgRGazlNIgbOxiVQDVMoR0IgRcsMndjrRomSurjk0eT17nwBv0/lBuuM0k2kPOyw1V1IAA==", "bitfield": 0, "parsed_payload": { "id": "!25500d53", "long_name": "Fk9mk4 0d53", "short_name": "Fk9M", "macaddr": "zsYlUA1T", "hw_model": "TRACKER_T1000_E", "public_key": "RcsMndjrRomSurjk0eT17nwBv0/lBuuM0k2kPOyw1V0=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 1210089982, "rx_time": 1781000041, "hop_limit": 4, "priority": "BACKGROUND", "hop_start": 4, "relay_node": 83 } }

Raw Packet Data (76 bytes)

0a09213235353030643533120b466b396d6b3420306435331a04466b394d2206cec625500d532847422045cb0c9dd8eb468992bab8e4d1e4f5ee7c01bf4fe506eb8cd24da43cecb0d55d4800

Hex Analysis:

Size:	76 bytes
Format:	Protobuf (Protocol Buffers)
Encoding:	Binary with varint and length-delimited fields

This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.

Packet #988227 Success

Packet Information

Payload Data

Decoded Data: